Scientific data near [58.91252,-161.78641]

Search area extends approximately 2.2 km east-west and 4.3 km north-south.

Geographic context

Counties, states, countries, continents, or oceans
Bethel	Census area
Alaska	state
United States	country
North America	continent
Land	continent
Map quadrangles, from USGS or Canadian NTS
Hagemeister Island D-6	1:63,360 Alaska quadrangle
Hagemeister Island	1:250,000 Alaska quadrangle
Watershed boundaries (USGS hydrologic units)
Kuskokwim Delta	hydrologic unit
190305	hydrologic accounting unit
Yukon	hydrologic subregion
Alaska	hydrologic region

Geology of US states

Digital geologic maps of the US states with consistent lithology, age, GIS database structure, and format

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Map symbol	Lithology	Unit name
JPs	Metamorphic	Calcareous and metabasaltic schist and phyllite
JTros	Tectonite	Newenham ophiolite complex
Qs	Unconsolidated	Unconsolidated surficial deposits, undivided
w		Water

Airborne geophysical surveys

Aerial surveys of magnetic anomaly and gamma ray emission; older surveys were analog record which have been digitized, newer surveys collected data in digital form.

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ID	Data type	Description
Goodnews Area	M-Dz	Goodnews Area 19634 line km with spacing 1.20 km over parts of AK
Hagemeister Island	M/R-D	Hagemeister Island 329 line km with spacing 9.60 km over parts of AK

Estimates of undiscovered mineral resources

National Mineral Resource Assessment 1998: Estimates of the number of undiscovered mineral resources of gold, silver, copper, lead, and zinc within identified permissive tracts (geographic areas in which mineral deposits may form).

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Tract	Deposit Type	Mineralization age
AK-SW14	Placer Au
AK-SW06	Low-sulfide Au-quartz veins
AK-SW08	Kuroko massive sulfide
AK-SW02	Besshi massive sulfide
AK-SW16	Polymetallic vein

The continental crust

Seventy-seven major components of the North American continent were delineated at a general scale (1:5,000,000); including the general composition, geological environment, and types of primary metals endowments that can be expected in each domain.

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Domain	Crust type	Region
Walrus-Goodnews	Accretionary wedge	Alaska

Radiometric ages of rocks from Alaska

Radiometric ages of rocks or minerals sampled from Alaska. The data were collected from professional publications and/or received from researchers and used by permission.

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Record	Type	Comment
HD6-1453e

Alaska Geochemical Database, Version 2.0 (AGDB2)--including "best value" data compilations for rock, sediment, soil, mineral, and concentrate sample media

Geochemical analyses of rocks, mineral separates, bulk samples from lake and stream sediments, heavy mineral concentrates, and soils collected by USGS from 1962 to 2009.

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Lab ID	Sample medium	Description
AJE925	sediment
AJE926	sediment
AJE927	sediment
C193204	sediment

National geochemical survey database

National-scale geochemical analysis of stream sediments and soils in the US, from existing data, reanalysis of existing samples, and new sampling. Goal for sample density is one per 289 square km.

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Sample ID	Material	Source
C-193204	Sediment	Beach

National Geochemical Database: Rock

Geochemical analysis of rock samples collected and analyzed by the USGS. This dataset includes and supersedes rock data formerly released as "Geochemistry of igneous rocks in the US extracted from the PLUTO database"

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Sample ID	Rock type	Rock name
BAT550	igneous	peridotite
BDG814	igneous	peridotite
BDG815	igneous	peridotite
BDG816	igneous	pyroxenite
BDG817	igneous	pyroxenite
BDG818	igneous	pyroxenite
BDG853	igneous	peridotite
BDG854	igneous	peridotite
BDG855	igneous	peridotite
BDG856	igneous	peridotite
BFZ516	igneous	peridotite
BFZ517	igneous	pyroxenite
BFZ518	igneous	pyroxenite
BFZ533	igneous	peridotite
M113992	igneous	peridotite
M113993	igneous	pyroxenite
M113994	igneous	pyroxenite
M114009	igneous	peridotite

Mineral Resource Data System

MRDS describes metallic and nonmetallic mineral resources throughout the world. Included are deposit name, location, commodity, deposit description, geologic characteristics, production, reserves, resources, and references.

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Site name	Development	Commodities
Red Mountain West Side	Past Producer	PGE CR FE
Red Mountain	Occurrence	PGE AU
Platinum-Salmon River Beach	Occurrence	CR FE PGE

An index to PGE-Ni-Cr deposits and occurrences in selected mineral-occurrence databases (web-accessible database)

A compendium of references to previously published databases and database records that describe PGE, nickel, and chromium deposits and occurrences. These data show where to obtain more detailed information about each deposit or occurrence.

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Deposit name	Deposit type	Location
Platinum-Salmon River Beach	Occurrence	Alaska, United States

National Geochemical Database: Sediment

Geochemical analysis of sediment samples from the National Geochemical Database. Primarily inorganic elemental concentrations, most samples are of stream sediment in the continental US and Alaska.

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Sample ID	Sample source	Sample notes
AJE925	beach/dune/loess	beach
AJE926	beach/dune/loess	beach
AJE927	beach/dune/loess	beach
C193204

Global assessment of undiscovered copper resources

Deposits, prospects, and permissive tracts for porphyry and sediment-hosted copper resources worldwide, with estimates of undiscovered copper resources.

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Tract name	Deposit type	Geology
Alaska Peninsula and Aleutian Islands	porphyry copper	Tertiary felsic to intermediate composition intrusions of the Alaska Peninsula and Aleutian Islands
Pacific Margin	porphyry copper	Cretaceous through middle Tertiary volcanic and intrusive rocks representing a series of continental- and island-arc systems accreted and superimposed onto the paleomargin of northeast Asia.